This adapter lets you run the variable resistance throttle position sensor in place of the standard idle switch that comes on the b21/23/230s. This is beneficial to anyone doing an ecu swap that would require a throttle position signal such as MegaSquirt. This is an adapter only, you will need a 850/960 style throttle position sensor and a redblock throttle body to bolt it to.
This adapter is machined from aluminum and finished in black anodize. Includes all necessary hardware.
